Now the history of the chemical enterprise is instantly accessible online.

C&EN Archives holds the complete collection of C&EN issues dated back from 1923, covering world chemical events, breakthroughs in research, technological advances, business and marketing ventures, government policy, career and education trends, and ACS milestones. With more than 500,000 pages of content, C&EN Archives is instantly accessible and fully searchable, allowing you to discover how the chemical enterprise developed into what it is today.

To celebrate our 90th anniversary, C&EN launched The Watch Glass, a Tumblr page that explores the magazine’s history through pictures and quotes. Each item links to a story from the C&EN Archives. Check out a 1955 cover story in honor of Linus Pauling’s Nobel Prize in Chemistry or a 1986 feature on efforts to discover drugs and vaccines to combat AIDS.